*2026/01/16 10:37:51.74 *IOS HEADER VERSION 2.0 2016/04/28 2016/06/13 IVF16 *FILE START TIME : UTC 2025/04/09 21:11:35.000 END TIME : UTC 2025/04/09 21:11:58.600 TIME INCREMENT : 0 0 0 0 200 ! (day hr min sec ms) TIME UNITS : Milliseconds NUMBER OF RECORDS : 119 DATA DESCRIPTION : CTD FILE TYPE : ASCII NUMBER OF CHANNELS : 8 $TABLE: CHANNELS ! No Name Units Minimum Maximum !--- ---------------------- --------------- -------------- -------------- 1 Pressure decibar 0.15 35.6 2 Depth metres 0.15 35.51 3 Temperature 'deg C (ITS90)' 8.571 9.984 4 Conductivity S/m 1.18121 3.21647 5 Conductance:Specific S/m 1.68904 4.75599 6 Salinity PSS-78 9.73 29.97 7 Speed:Sound m/s 1459.09 1479.92 8 Density kg/m^3 1007.296 1023.373 $END $TABLE: CHANNEL DETAIL ! No Pad Start Width Format Type Decimal_Places !--- ---- ----- ----- ------ ---- -------------- 1 -99 ' ' 7 F R4 2 2 -99 ' ' 7 F R4 2 3 -99 ' ' 8 F R4 3 4 -99 ' ' 10 F R4 5 5 -99 ' ' 10 F R4 5 6 -99 ' ' 7 F R4 2 7 -99 ' ' 8 F R4 2 8 -99 ' ' 9 F R4 3 $END *ADMINISTRATION MISSION : 2025-087 AGENCY : Pacific Biological Station COUNTRY : Canada PROJECT : PSSI SCIENTIST : Deeg C. PLATFORM : Other Vessel *LOCATION GEOGRAPHIC AREA : West Coast Vancouver Island EVENT NUMBER : 102 LATITUDE : 49 39.94980 N ! (deg min) LONGITUDE : 126 28.83450 W ! (deg min) *INSTRUMENT TYPE : CTD MODEL : Castaway SERIAL NUMBER : CC2009002 SOURCE FILE : CC2009002_20250409_211135 ! custom item *HISTORY $TABLE: PROGRAMS ! Name Vers Date Time Recs In Recs Out ! -------- ------ ---------- -------- --------- --------- SPRD2IS 5.3.1 2026/01/16 10:33:28 119 119 MERGEHDR 1.3 2026/01/16 10:35:41 119 119 HDREDIT2 3.2 2026/01/16 10:36:12 ? ? REMOVECH 8.2 2026/01/16 10:36:39 119 119 CALIB 12.1 2026/01/16 10:37:15 119 119 CLEAN 5.3 2026/01/16 10:37:51 119 119 $END $REMARKS -HEADER EDITS: 2026/01/16 10:36:12 Applied edit header: C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\castaway2023_HDR.txt Channel 2: Depth [metres] Format: F10.6 ==> F7.2 Channel 3: Temperature [deg C (ITS90)] Format: F14.6 ==> F8.3 Channel 4: Conductivity [mS/cm] Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 5: Conductance:Specific [mS/cm] Name: Specific Conductance ==> Conductance:Specific Units: ms/cm ==> mS/cm Format: F14.6 ==> F9.1 Channel 6: Salinity [PSS-78] Format: F14.6 ==> F7.2 Channel 7: Speed:Sound [m/s] Name: Sound Velocity ==> Speed:Sound Format: F14.6 ==> F8.2 Channel 8: Density [kg/m^3] Format: F14.6 ==> F9.3 -REMOVECH 2026/01/16 10:36:39 The following CHANNEL(S) were removed: Event_number -CALIB parameters: 2026/01/16 10:37:15 Calibration type = Correct Mode: ONLY - calibration specs from Cal File only. Calibration file = C:\Users\huntingtons\Desktop\Misc_Projects\Castaway\recal-cond.CCF Calibrations applied: Ch Name Units Fmla Coefficents -- ----------------------------- --------- --- ----------------------------- 4 Conductivity S/m 10 0.0000000E+00 0.1000000E-03 5 Conductance:Specific S/m 10 0.0000000E+00 0.1000000E-03 -CLEAN functions: 2026/01/16 10:37:42 20 Reset #RECS, MIN & MAX values in header. Set header Start and End times from the data. $END *COMMENTS Data Processing Notes: The CastAway-CTD is a small profiling instrument that measures conductivity, temperature, and pressure. Its embedded firmware controls all of the instrument's functions. It is designed for profiling to depths of up to 100m at 5 Hz. It uses a six electrode flow-through conductivity cell with zero external field coupled with a rapid response thermistor (<5Hz) to attain high measurement accuracies. The instrument does not require a pump and is hydrodynamically designed to free fall rate of 1 m/s. Processing was done using the CastAway CTD data processing system which included the following steps: - Pressure correction to remove ambient atmospheric pressure. - Removal of records obtained while the system was stationary. - De-spiking of conductivity data to remove erratic measurements near the water surface that can be caused by air bubbles trapped in the conductivity flow cell. - Bin-averaging with 0.3db bins with linear interpolation used to fill empty bins or the nearest available value for surface or bottom bins. - Combination of downcast and upcast data using a weighted average based on fall velocity. - Derivation of specific conductance, salinity, sound speed, density and depth for each pressure bin. The data were converted to IOS Header format. Calibration dates were taken from the original data file header: % Samples per second,5 % Electronics calibration date,0001-01-01 % Conductivity calibration date,2020-03-13 % Temperature calibration date,2020-03-12 % Pressure calibration date,2020-03-04 % *CALIBRATION $TABLE: CORRECTED CHANNELS ! Name Units Fmla Pad Coefficients ! ---------------------- ----- ---- ------ ------------ Conductivity S/m 10 -99 () (0 0.1E-03) Conductance:Specific S/m 10 -99 () (0 0.1E-03) $END !--1--- --2--- ---3--- ----4---- ----5---- --6--- ---7--- ---8---- !Pressu Depth Tempera Conductiv Conductan Salini Speed: Density !re ture ity ce: ty Sound ! Specific !------ ------ ------- --------- --------- ------ ------- -------- *END OF HEADER 0.15 0.15 9.967 1.18121 1.68904 9.73 1459.09 1007.296 0.45 0.46 9.984 1.50555 2.15178 12.65 1462.70 1009.561 0.75 0.76 9.922 1.57019 2.24812 13.26 1463.21 1010.046 1.05 1.06 9.845 1.90553 2.73427 16.40 1466.72 1012.499 1.35 1.36 9.788 2.33255 3.35255 20.49 1471.46 1015.685 1.65 1.66 9.773 2.56319 3.68562 22.73 1474.12 1017.431 1.95 1.96 9.763 2.62771 3.77948 23.37 1474.86 1017.929 2.25 2.26 9.702 2.65731 3.82880 23.69 1475.04 1018.195 2.55 2.56 9.655 2.75663 3.97724 24.70 1476.09 1018.988 2.85 2.86 9.645 2.87935 4.15551 25.92 1477.54 1019.942 3.15 3.16 9.629 2.94627 4.25403 26.60 1478.31 1020.473 3.45 3.46 9.578 3.01262 4.35632 27.30 1478.98 1021.028 3.75 3.76 9.543 3.02769 4.38249 27.48 1479.07 1021.173 4.05 4.06 9.517 3.04630 4.41275 27.68 1479.23 1021.339 4.35 4.36 9.523 3.06311 4.43636 27.85 1479.45 1021.467 4.65 4.66 9.518 3.07265 4.45082 27.95 1479.56 1021.547 4.95 4.96 9.498 3.08305 4.46845 28.07 1479.64 1021.645 5.25 5.26 9.481 3.08818 4.47809 28.13 1479.66 1021.700 5.55 5.56 9.460 3.08722 4.47937 28.14 1479.60 1021.709 5.85 5.86 9.441 3.08648 4.48084 28.15 1479.54 1021.719 6.15 6.16 9.403 3.08662 4.48592 28.18 1479.44 1021.750 6.45 6.46 9.361 3.08647 4.49129 28.21 1479.33 1021.783 6.75 6.76 9.336 3.08749 4.49601 28.24 1479.27 1021.811 7.05 7.06 9.311 3.09139 4.50494 28.30 1479.26 1021.862 7.35 7.35 9.275 3.09482 4.51470 28.36 1479.21 1021.919 7.65 7.65 9.242 3.09355 4.51712 28.37 1479.11 1021.935 7.95 7.95 9.227 3.09317 4.51866 28.38 1479.06 1021.945 8.25 8.25 9.219 3.09459 4.52171 28.40 1479.06 1021.963 8.55 8.55 9.206 3.09503 4.52413 28.42 1479.04 1021.978 8.85 8.85 9.196 3.09498 4.52537 28.42 1479.01 1021.987 9.15 9.15 9.191 3.09498 4.52599 28.43 1479.01 1021.992 9.45 9.45 9.184 3.09626 4.52876 28.45 1479.01 1022.009 9.75 9.75 9.178 3.09681 4.53047 28.46 1479.00 1022.019 10.05 10.05 9.173 3.09747 4.53208 28.47 1479.00 1022.030 10.35 10.35 9.167 3.09934 4.53559 28.49 1479.01 1022.050 10.65 10.65 9.160 3.10002 4.53754 28.50 1479.01 1022.062 10.95 10.94 9.147 3.10060 4.54014 28.52 1478.98 1022.079 11.25 11.24 9.124 3.10116 4.54393 28.54 1478.93 1022.102 11.55 11.54 9.105 3.10048 4.54547 28.55 1478.87 1022.112 11.85 11.84 9.089 3.09858 4.54490 28.55 1478.81 1022.111 12.15 12.14 9.070 3.09743 4.54565 28.55 1478.75 1022.117 12.45 12.44 9.053 3.09613 4.54598 28.55 1478.69 1022.121 12.75 12.74 9.036 3.09719 4.54983 28.57 1478.66 1022.144 13.05 13.04 9.015 3.09825 4.55418 28.60 1478.62 1022.170 13.35 13.34 9.001 3.09674 4.55391 28.60 1478.57 1022.171 13.65 13.64 8.989 3.09518 4.55319 28.59 1478.52 1022.169 13.95 13.94 8.979 3.09506 4.55438 28.60 1478.50 1022.177 14.25 14.24 8.963 3.09648 4.55857 28.62 1478.48 1022.202 14.55 14.54 8.947 3.09620 4.56035 28.63 1478.43 1022.213 14.85 14.83 8.929 3.09403 4.55956 28.63 1478.36 1022.211 15.15 15.13 8.911 3.09064 4.55697 28.61 1478.27 1022.199 15.45 15.43 8.902 3.08917 4.55597 28.60 1478.23 1022.195 15.75 15.73 8.893 3.08891 4.55688 28.60 1478.21 1022.202 16.05 16.03 8.881 3.08885 4.55831 28.61 1478.18 1022.212 16.35 16.33 8.871 3.08932 4.56038 28.62 1478.16 1022.225 16.65 16.63 8.866 3.09032 4.56256 28.64 1478.17 1022.238 16.95 16.93 8.865 3.09106 4.56381 28.65 1478.18 1022.246 17.25 17.23 8.862 3.09219 4.56586 28.66 1478.19 1022.259 17.55 17.53 8.860 3.09443 4.56943 28.69 1478.22 1022.279 17.85 17.83 8.864 3.09446 4.56888 28.68 1478.23 1022.277 18.15 18.12 8.866 3.09497 4.56948 28.69 1478.25 1022.282 18.45 18.42 8.866 3.09653 4.57167 28.70 1478.27 1022.295 18.75 18.72 8.867 3.09681 4.57199 28.70 1478.28 1022.298 19.05 19.02 8.866 3.09708 4.57259 28.71 1478.29 1022.303 19.35 19.32 8.862 3.09828 4.57491 28.72 1478.30 1022.317 19.65 19.62 8.857 3.09895 4.57657 28.73 1478.30 1022.327 19.95 19.92 8.850 3.09967 4.57854 28.75 1478.29 1022.339 20.25 20.22 8.848 3.09522 4.57218 28.70 1478.24 1022.306 20.55 20.52 8.859 3.09358 4.56830 28.68 1478.25 1022.286 20.85 20.82 8.870 3.10285 4.58047 28.76 1478.40 1022.353 21.15 21.12 8.896 3.10966 4.58706 28.81 1478.56 1022.389 21.45 21.42 8.933 3.11092 4.58397 28.79 1478.69 1022.372 21.75 21.71 8.959 3.11510 4.58653 28.81 1478.82 1022.385 22.05 22.01 8.973 3.12117 4.59367 28.87 1478.93 1022.425 22.35 22.31 8.993 3.12429 4.59554 28.88 1479.03 1022.435 22.65 22.61 9.020 3.12714 4.59606 28.89 1479.15 1022.438 22.95 22.91 9.043 3.13234 4.60053 28.92 1479.28 1022.463 23.25 23.21 9.049 3.13675 4.60618 28.96 1479.36 1022.494 23.55 23.51 9.049 3.13775 4.60766 28.97 1479.38 1022.504 23.85 23.81 9.056 3.13798 4.60713 28.97 1479.40 1022.502 24.15 24.11 9.057 3.13632 4.60451 28.95 1479.39 1022.489 24.45 24.41 9.042 3.13622 4.60647 28.96 1479.35 1022.501 24.75 24.71 9.001 3.13478 4.60989 28.98 1479.22 1022.523 25.05 25.00 8.967 3.12921 4.60627 28.95 1479.07 1022.506 25.35 25.30 8.947 3.12315 4.60010 28.91 1478.94 1022.475 25.65 25.60 8.921 3.11948 4.59809 28.89 1478.83 1022.467 25.95 25.90 8.905 3.11576 4.59482 28.86 1478.74 1022.451 26.25 26.20 8.892 3.11647 4.59766 28.88 1478.72 1022.468 26.55 26.50 8.854 3.13278 4.62685 29.08 1478.82 1022.630 26.85 26.80 8.806 3.13647 4.63892 29.16 1478.74 1022.699 27.15 27.10 8.792 3.12309 4.62105 29.03 1478.54 1022.603 27.45 27.40 8.796 3.11271 4.60509 28.92 1478.43 1022.518 27.75 27.70 8.753 3.11319 4.61176 28.96 1478.32 1022.557 28.05 27.99 8.688 3.11032 4.61630 28.98 1478.11 1022.586 28.35 28.29 8.655 3.10625 4.61491 28.97 1477.97 1022.581 28.65 28.59 8.635 3.10683 4.61848 28.99 1477.92 1022.602 28.95 28.89 8.599 3.10877 4.62633 29.04 1477.85 1022.648 29.25 29.19 8.579 3.10978 4.63053 29.07 1477.82 1022.672 29.55 29.49 8.579 3.10932 4.62982 29.06 1477.82 1022.670 29.85 29.79 8.573 3.11095 4.63313 29.08 1477.82 1022.689 30.15 30.09 8.571 3.11567 4.64042 29.13 1477.88 1022.730 30.45 30.39 8.577 3.11861 4.64393 29.16 1477.94 1022.750 30.75 30.69 8.589 3.12904 4.65790 29.26 1478.11 1022.827 31.05 30.99 8.604 3.13783 4.66877 29.34 1478.27 1022.887 31.35 31.28 8.621 3.14162 4.67209 29.36 1478.37 1022.906 31.65 31.58 8.640 3.14989 4.68172 29.43 1478.53 1022.958 31.95 31.88 8.647 3.15671 4.69096 29.50 1478.64 1023.010 32.25 32.18 8.639 3.15970 4.69648 29.53 1478.66 1023.041 32.55 32.48 8.652 3.16625 4.70441 29.59 1478.79 1023.085 32.85 32.78 8.673 3.17080 4.70825 29.62 1478.91 1023.107 33.15 33.08 8.693 3.17646 4.71380 29.66 1479.04 1023.137 33.45 33.38 8.714 3.18096 4.71751 29.69 1479.16 1023.158 33.75 33.68 8.731 3.18446 4.72031 29.71 1479.25 1023.174 34.05 33.97 8.746 3.18824 4.72393 29.74 1479.35 1023.194 34.35 34.27 8.753 3.19320 4.73028 29.78 1479.43 1023.230 34.65 34.57 8.763 3.19836 4.73643 29.83 1479.53 1023.264 34.95 34.87 8.775 3.20492 4.74457 29.88 1479.65 1023.309 35.25 35.17 8.790 3.21293 4.75432 29.95 1479.80 1023.363 35.60 35.51 8.815 3.21647 4.75599 29.97 1479.92 1023.373